ISO 15587-2-2002 水质.测定水中所选元素的发酵作用.第2部分:硝酸发酵作用

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【英文标准名称】:Waterquality-Digestionforthedeterminationofselectedelementsinwater-Part2:Nitricaciddigestion
【原文标准名称】:水质.测定水中所选元素的发酵作用.第2部分:硝酸发酵作用
【标准号】:ISO15587-2-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:水化学;分解法;试验;定义;水;水常规(实验);含量;发酵法;水质试验;痕量元素;水常规;发酵作用;分析;水质;硝酸;盐酸;氧化法;化学分析和试验;含量测定;分解
【英文主题词】:Analysis;Chemicalanalysisandtesting;Chemistryofwater;Content;Definitions;Determinationofcontent;Digestion;Digestionmethod;Disintegration;Disintegrationmethod;Hydrochloricacid;Nitricacid;Oxidationmethods;Testing;Traceelements;Water;Waterpractice;Waterquality;Watertesting
【摘要】:ThispartofISO15587specifiesamethodforextractingtraceelementsfromawatersampleusingnitricacidasadigestionagent.Themethodisapplicabletoalltypesofwaterswithasuspendedsolidsconcentrationoflessthan20g/landatotalorganiccarbon(TOC)concentrationexpressedascarbonoflessthan5g/l.Thenitricaciddigestionmethodisempiricalanditmightnotnecessarilyreleaseelementscompletely.However,formostenvironmentalapplicationstheresultisfitforpurpose.Nitricaciddigestionissuitableforthereleaseof:Al,As,B,Ba,Be,Ca,Cd,Co,Cr.Cu,Fe.Hg,K,Mg.Mn,Mo,Na,Ni,P,Pb,Se,Sr,Tl,V,Zn(asteriskindicatesapossiblelowerrecoverycomparedtoaquaregiadigestionmethodspecifiedinISO15587-1,seereference[1]).ItissuitableforthereleaseofAgonlyifthesampletsstabilizedimmediatelyafterdigestion.NitricaciddigestionisnotsuitableforSb,SnandforthedigestionofrefractorycompoundssuchasSiO2,TiO2andAI2O3.Themethodisgenericandmaybeimplementedusingawidevarietyofequipmentprovided—thedigestioncompositionisunchanged,—thedigestiontemperatureisknown,and—thedigestiondurationisinaccordancewiththistemperature.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:17P.;A4
【正文语种】:英语